Spindle support



AJune 15, 1943.

W. J` ELVIN ErAL SPINDLE SUPPORT Filed June 20, 1942 n la 17 INVENTOR.

Patented .lune l5, 1943 SPINDLE SUPPORT William J. Elvin, Frostburg, andCharles Leo Hivick, Cresaptown, Md., assignors to Celanese Corporationof America, a corporation of Del-A aware Application June 2li, 194,2,Serial No. 447,332

4 Claims.

This invention relates to winding and twisting machines, and relatesmore particularly to im proved means for supporting spindle assembliesof winding and twisting machines employed for the yproduction of yarnpackages of large size, say, from two to lfour pounds.

In twisting and winding machines heretofore employed for the productionof yarn packages, such as headless packages of large size, the spindlesand swings were of substantially the same design as those employed forhandling packages having a gross weight of 12 ounces, except that theywere of heavier construction. The

' maintenance costs of such spindles and swings were excessively high.Moreover, due to the vibration caused by out-of-balance spools andoutof-balance yarn windings, oil throwing from spindle steps wasencountered, resulting in yarn soilage. It is accordingly an importantobject of this invention to provide an improved support for spindles ofAtwisting and winding machines producing large size packages,which-support will be free from the foregoing and other disadvantagesand which will be especially simple in construction and inexpensive inoperation.

Another object of this invention is the provision of a spindle supportin a winding and twisting machine that provides a very simple tensionadjustment of the spindle whorl with the drive belt resulting in yarnhaving uniform twists.

Another object of this invention is to provide a spindle support thatdoes not require constant lubrication with the result that there is lesslikelihood of soiled yarn.

Other objects of this invention, together with certain details ofconstruction and combinations of parts, will appear from the followingdetailed description and drawing.

In the drawing where there is shown one embodiment of this invention:

Fig. 1 is a plan view of a spindle support constructed in accordancewith this invention,

Fig. 2 is a front view thereof, and

Fig. 3 is a side view of the spindle support.

Like reference numerals refer to the same or similar elements in theseveral views of the drawing.

The spindle support constructed in accordance with this invention may beclamped to the frame of any yarn packaging device, but will be describedin connection with a multiple spindle twisting and winding machine. Sucha machine is provided with a frame having supporting rods l and 2 whichrun lengthwise of a multiple spindle machine and any suitable number cfspindle supports may be attached thereto. A traveling belt 3 is providedagainst which the whorl 4 of a spindle blade 5 is to contact. l Thespindle support of our invention comprises a jaw 6 mounted at the rearof rods I and 2, which jaw is adapted to' cooperate with a second jaw lat the front of said rods, clamping bolts 8 being provided to hold saidjaws in position on said rods. Set screws 9 which bear against rod I andset screws I I which bear against rod 2 are provided for the purpose ofgiving an exact adjustinent to the jaws 6 and l.

Extending forwardly from the jaw 'I is a round rod I2 and a rectangularbar I3 which taken to- 'gether form a track or slideway for a table lli.

The table It is provided with a hole I5 and a groove I3 for slidingconnection with the rod I2 and bar I3, respectively. Tapped yto the backof the table Id is a shaft Il which passes through the jaw 'I and whichholds thereon tension spring I8 by means of anadjustable collar IS whichis held in adjusted position by means of a set screw (not shown) in thecollar, vor the collar may be threaded on the shaft I'I. By adjustmentof the collar I9, there may be maintained on spring I8 the desiredtension for holding the table in a position such that belt 3 makes adriving contact with the whorl 4 under normal operating conditions.

The table I4 supports the spindle and whorl assembly, the one shown onthe drawing being of a conventional type comprising a well or bolster 2|provided with external threads 22 on which is turned a lock nut 23holding a shock absorbing spring 2li in a recess 25 in the table I4 forsecuring the assembly on the table Iii. On the upper side of the tableI4 is a bearing plate and washer generally indicated by referencenumeral 26 that carries a latch 2l for preventing the lifting ofthewhorl 4. A brake 28 is provided to automatically slide the table idforward and the whorl 4 carried thereby out of contact with the belt 3upon breakage of the yarn. The whorl 4 is moved forward approximatelyone-half inch when contacted by the brake 28 at which time table I4slides forward on slideways I2 and I3. In use, the spring I3 will allowthe table Ill and the whorl i to reciprocate slightly to compensate forany irregularities of the belt 3 as at the splice. Here the spindle willpull against the action` of the spring causing it to follow the belt andengage the same with sufficient tension to obtain the traction necessaryfor uniformly rotating the package.

The invention as shown on the drawing and described above is normallyapplied to a headless package machine, i. e. a yarn packaging device inwhich the yarn is pulled from a source of supply, such as a bobbin, upthrough suitable guides and on to a core placed on the spindle blade 5.Twist is usually inserted in the yarn during this operation. Althoughshown and described as applied to a headless package twister theinvention may be applied to any uptwister.

Although this invention is applicable to the twisting and/or packagingof all types of yarn, it is particularly applicable to the twisting andpackaging of the continuous lament type of artificial silk yarns whichdue to their smooth character require more exact windings to build apackage of any substantial size. Therefore, this invention isparticularly applicable to the packaging of yarns made from derivativesof cellulose such as the organic esters of cellulose, cellulose ethersand regenerated or reconstituted cellulose.

It is to be understood that the foregoing detailed description with itsreferences to the dravving is merely given by way of illustration and isintended t disclose an operative embodiment of the invention in thenovel combination and relation of parts. Obviously, many variations maybe made in the device without departing from the spirit of theinvention.

Having described our invention, what we desire to secure by LettersPatent is:

1. In a yarn packaging device, the combination with a spindle and whorlassembly, a frame and a spindle driving belt, of a support for thespindle and whorl assembly to hold same in driving relationship to thedriving belt including jaws for clamping the support on to the frame, aslide way extending from one of said jaws and a table supporting thespindle and whorl assembly adapted to slide on said slideway forpositioning the spindle and whorl assembly relative to said drivingbelt.

2. In a yarn packaging device, the combination with a spindle and whorlassembly, a frame and a spindle driving belt, of a support for .thespindle and whorl assembly to hold same in driving relationship to thedriving belt including jaws for clamping the support on to the frame,means for adjusting said jaws for positioning the support relative tosaid frame, a slideway extending from one of said jaws and a tablesupporting the spindle and whorl assembly adapted to slide on saidslideway for positioning the spindle and whorl assembly relative to saiddriving belt.

3. In a yarn packaging device, the combination with a spindle and whorlassembly, a frame and a driving belt, of a support for the spindle andwhorl assembly including jaws for clamping the support on to the frame,means for adjusting said jaws for positioning the support relative tosaid frame, a slideway extending from one of said jaws, a tablesupporting the spindle and whorl assembly adapted to slide on saidslideway, a shaft attached to said table passing through one of saidjaws and a spring acting on said shaft to exert a pressure on said tabletoward said driving belt.

4. In a yarn packaging device, the combination of a spindle and whorlassembly, a frame and a spindle driving belt, of a support for thespindle and whorl assembly including a pair of jaws for clamping thesupport on to the frame, means on one of said jaws for positioning thesupport relative to said frame, a slideway extending from one of saidjaws, a table supporting the spindle and whorl assembly adapted to slideon said slideway, a shaft attached to said table passing through one ofsaid jaws and a spring acting on said shaft to exert a pressure on saidtable toward said driving belt.

WILLIAM J. ELVIN. CHARLES LEO HIVICK.

